| Titre : |
The use of mixed tocopherols to improve UV and heat resistance of leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Cheng-Kung Liu, Auteur ; Liu Linshu, Auteur ; Nicholas P. Latona, Auteur ; Mila Aldema-Ramos, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
p. 9-15 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cuirs et peaux
Cuirs et peaux -- Propriétés mécaniques
Photostabilité
Résistance au rayonnement ultraviolet
Résistance thermique
Solidité de la couleur
Vitamine E
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Most leather products are constantly exposed to outdoor environments, therefore UV and heat resistance are very important qualities, particularly for non-chrome-tanned (chrome-free) leather. In recent years, we have addressed this problem and focused on an environmentally friendly finishing process that will improve the UV and heat resistance of leather. Tocopherols are well-known antioxidants commonly used in the cosmetic and food industries. Tocopherols have been reported as potent free radical scavengers and highly protective agents for collagen fibers against UV and heat damage. Our previous research on alpha-tocopherol showed that it significantly improved UV and heat resistance of leather. Mixed tocopherols, on the other hand, are more abundant and are produced from a renewable source such as soybeans. We have investigated its potential to be applied to leather for improving UV and heat resistance. Experiments were conducted by adding 5 to 12% mixed tocopherols to the grain layer finishes of chrome-free leather. The treated samples were tested in a weatherometer, where they were exposed to artificial sunlight at a high temperature. Colorfastness and mechanical properties tests showed that mixed tocopherols significantly improved UV and heat resistance of leather. |
| Note de contenu : |
- EXPERIMENTAL : Materials and procedure : Leather preparation - Scanning Electron Microscopy - Leather properties testing
- RESULTS AND DISCUSSION : Color lightfastness - tensile properties - Stiffness - Dynamic mechanical behavior
- Table 1 : Coating experiments |
| En ligne : |
https://drive.google.com/file/d/1Ixua0RX4chrgsMRgnyMy1z5ViqLMIkyk/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8090 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 1 (01/2010) . - p. 9-15
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The use of mixed tocopherols to improve UV and heat resistance of leather in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 1 (01/2010)
